Improvement in cement-kilns



UNITED STATES PATENT GEEICE.

JOHN E. PARK, OF RTHERFORD COUNTY, TENNESSEE. I

IMPROVEMENT IN CEMENT-KILNS.

Specification forming-part of Letters Patent No. 133,664, dated December 3, 1372.

cess of Burning, of which the following is a specification Cement-kilns are ordinarily defective in re.

spect of the arrangement of base-fines or furnaces, whereby thematerial to be burned is' unequally heated or acted on by the flame. My improvement consists in arranging the ilues so as to traverse the whole width ofthe kiln and open alternately at one side and the other.

In the accompanying drawing, Figure lis a perspective View of a kiln;` and Fig. 2, a plan View, showing my improved arrangement of furnace-dues.

The base-lines A extend transversely across the kiln, and open or have their mouths alternately on opposite sides t thereof. lhus the cement 4material will be equally heated whether it lie near 'one side of the kiln or the other, and the result of such action of the terial on one side of the kiln was subjected to a heat much more intense. than that on the other, whereby the cementitous quality of the saine is often greatly impaired. In' relation to hydraulic cement and its uses this result is highly important.

I have shown a series of upper flues, B, and watch-holes near the same, built with hearths projecting into the interior of the kiln.

The advantage of such provision of supplementary furnaces is obyious, as regards the proper heating of the mass of material rcmoved from the immediate. or most powerful influence of the heat or name of the base flues A. E

The form of kiln is preferably rectangular and oblong.

Having thus described my invention, what I claim as new, and desireto secure by Let: ters Patent, is-

The arrangement of the base-ilues or furnaces A, the same traversing the kiln and opening alternately on opposite sides thereof', as and for the purpose specified.

In testimony that I claim the foregoing as my own I aflix my signature in the presence of two witnesses.

JOHN E. PARK.

Witnesses:

ROBERT MoGoY, E. F. WILSON. 

